Foreign relations -- 45 Politics and government -- 9 History -- 7 Nuclear arms control -- 7 World politics -- 6 Cold War 5 Communism -- 5 more ... Military relations -- 5 Congresses -- 4 Economic policy -- 4 Military policy 4 Politics and government 4 Biography -- 3 Heads of state -- 3 Arms control -- 2 Congresses 2 Defense industries -- 2 Detente 2 Economic conditions -- 2 History 2 National security -- 2 Perestroika 2 Verification 2 Airspace (International law) 1 Ambassadors -- 1 Arms control 1 Arms race -- 1 Authoritarianism -- 1 Balance of power 1 Ballistic missiles 1 less ...